Prokit's Industries MT-8006B - Manual (Page 15)

Caution：
If the Data Diver connected to a line with voltage over 100V, the fuse
will be blown, and it may also caused the IC protection function to
start and lock the Data Diver. When it happens, please remove all
batteries, and wait for 5-10 minutes until all power is dissipated, then
place the batteries back and restart the Data Diver.
Defect Situation Possible Problem Solution
Dead, Doesn’t
work Blown fuse/IC protection
locked
Change new fuse
Remove the batteries,
wait for 5-10mins and
restart the Data Diver
No tone
Angled bed of nails are
not well connected
Check if Angled bed of
nails are well connected
to telecom line
Speakerphone
doesn’t work
MUTE button was
pressed and MUTE LED
indicator lights up Press the MUTE button
and check if the MUTE
LED is off
Short rings only
Low battery /the angled
bed of nails are
connected to the power
source Change new battery
Confirm if the angled
bed of nails connected
to the right telecom line
Can not hear the
conversation on
the Monitor status The switch did not set to
“Mon” position
Low battery Set the switch to “M”
position / Change a new
battery
Crosstalk
Angled bed of nails are
not connected firmly
The interference from
the telecom line Check if the Angled bed
of nails are well
connected
Memory of storing
numbers doesn’t
work
Low battery Change new battery
Polarity LED
doesn’t work
Low battery Change new battery
HI (LED)
doesn’t work
Low battery Change new battery
BATT(LED)
doesn’t work
Low battery Change new battery
14